NOT RECOMMENDED FOR NEW DESIGN -
NO ALTERNATE PART
AP2822
0.5A to 2.0A HIGH-SIDE POWER DISTRIBUTION SWITCHES
Description
The AP2822 is an integrated high-side power switch that consists of N-
Channel MOSFET, charge pump, over current & temperature and other
related protection circuits. The switch’s low R
DS(ON)
, 85mΩ is designed
to meet USB voltage drop requirements. The IC includes soft-start to
limit inrush current, over-current protection, load short protection with
fold-back, and thermal shutdown to avoid switch failure during hot
plug-in. Under voltage lockout (UVLO) function is used to ensure the
device remain off unless there is a valid input voltage present. A
FLAG output is available to indicate fault conditions to the local USB
controller.
The AP2822 is available in the standard package of SOT-23-5.
Pin Assignments
(Top View)
(Top View)
FLAG
GND
EN
1
2
3
5
VOUT
EN
GND
1
2
3
5
VOUT
4
VIN
FLAG
4
VIN
(SOT-23-5/ K Package)
(Top View)
(SOT-23-5/ KA Package)
(Top View)
Features
VOUT
1
2
3
5
VOUT
VOUT
GND
1
2
3
5
VIN
Low MOSFET On Resistance: 85mΩ
Compliant to USB Specifications
Available 4 Versions of Continuous Load: 0.5A/1.0A/1.5A/2.0A
Logic Level Enable Pin: Available with Active-high or Active-low
Version
Operating Voltage Range: 2.7V to 5.5V
Low Supply Current: 68µA (Typ.)
Low Shutdown Current: 1.0µA (Max)
Under-voltage Lockout
Soft Start-up
Over-current Protection
Over Temperature Protection
Load Short Protection with Fold-back
No Reverse Current When Power Off
Deglitched FLAG Output with Open Drain
With Output Shutdown Pull-low Resistor
(For Auto-discharge)
(AP2822A/AP2822B/AP2822C/AP2822D/AP2822E/AP2822F/AP
2822G/AP2822H)
VIN
4
EN
FLAG
4
EN
GND
(SOT-23-5/ KB Package)
(SOT-23-5/ KE Package)
Applications
USB Power Management
USB Bus/Self Powered Hubs
Hot-plug Power Supplies
Battery-charger Circuits
Notebooks, Motherboard PCs
Without Output Shutdown Pull-low Resistor
(For No Auto-discharge)
(AP2822AN/AP2822BN/AP2822CN/AP2822DN/AP2822EN/AP2
822FN/AP2822GN/AP2822HN)
Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AP2822
Document number: DS41399 Rev. 1 - 3
1 of 16
www.diodes.com
November 2018
© Diodes Incorporated
NOT RECOMMENDED FOR NEW DESIGN -
NO ALTERNATE PART
AP2822
Typical Applications Circuit
R
10kΩ
V
IN
=5V
C
IN
(Note 4)
2.2µF
3(1){4}[4]
4(4){3}[5]
VIN
FLAG
1(3)[3]
USB Controller
AP2822
5(5){1,5}[1]
Enable
EN
GND
2(2){2}[2]
VOUT
C
OUT
1µF
V
BUS
D+
D-
GND
A(B){C}[D]
A: SOT-23-5(K Package)
B: SOT-23-5(KA Package)
C: SOT-23-5(KB Package)
D: SOT-23-5(KE Package)
Note 4:
2.2µF input capacitor is enough in most application cases. If the VOUT is short to ground frequently during usage, large size input capacitor is necessary,
recommend 22µF.
Pin Descriptions
Pin Number
1(K)
FLAG
3(KA/KE)
2
3(K)
1(KA)
4(KB/KE)
4(K/KA)
3(KB)
5(KE)
5(K/KA)
1,5(KB)
1(KE)
VOUT
Switch output voltage
VIN
Supply input pin
EN
Chip enable control input, active low or high
GND
Pin Name
Function
Fault flag pin, output with open drain, need a pull-up resistor in application,
active low to indicate OCP or OTP
Ground
AP2822
Document number: DS41399 Rev. 1 - 3
2 of 16
www.diodes.com
November 2018
© Diodes Incorporated
NOT RECOMMENDED FOR NEW DESIGN -
NO ALTERNATE PART
AP2822
Functional Block Diagram
VIN
EN
3(1){4}[4]
4(4){3}[5]
Clock
Gate Control
Band Gap
Reference
Over Current
Limiting
CMP
Current
Sense
Shutdown
Signal
5(5){1,5}[1]
VOUT
Disable for Without
Auto-discharge
1(3)[3]
FLAG
UVLO
Thermal
Sense
FLAG
Deglitch Logic
GND
2(2){2}[2]
A(B){C}[D]
A: SOT-23-5(K Package)
B: SOT-23-5(KA Package)
C: SOT-23-5(KB Package)
D: SOT-23-5(KE Package)
AP2822
Document number: DS41399 Rev. 1 - 3
3 of 16
www.diodes.com
November 2018
© Diodes Incorporated
NOT RECOMMENDED FOR NEW DESIGN -
NO ALTERNATE PART
AP2822
Absolute Maximum Ratings
(Note 5)
Symbol
V
IN
T
J
T
STG
T
LEAD
θ
JA
—
—
Note 5:
Parameter
Power Supply Voltage
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10sec)
Thermal Resistance (Junction to Ambient)
ESD (Machine Model)
ESD (Human Body Model)
Rating
6.0
+150
-65 to +150
+260
200
200
2000
Unit
V
°
C
°
C
°
C
°
C/W
V
V
Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied.
Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Symbol
V
IN
T
A
Supply Voltage
Operating Ambient Temperature Range
Parameter
Min
2.7
-40
Max
5.5
+85
Unit
V
°
C
AP2822
Document number: DS41399 Rev. 1 - 3
4 of 16
www.diodes.com
November 2018
© Diodes Incorporated
NOT RECOMMENDED FOR NEW DESIGN -
NO ALTERNATE PART
AP2822
Electrical Characteristics
(V
IN
= 5.0V, C
IN
= 2.2µF, C
OUT
= 1.0µF, Typical T
A
= +25° unless otherwise specified)
C,
Symbol
V
IN
R
DS(ON)
Parameter
Supply Voltage
Switch On Resistance
—
V
IN
= 5.0V, I
OUT
= 2.0A
AP2822A/B(0.5A), V
OUT
= 4.0V
AP2822C/D(1.0A), V
OUT
= 4.0V
I
LIMIT
Current Limit
AP2822E/F(1.5A), V
OUT
= 4.0V
AP2822G/H(2.0A), V
OUT
= 4.0V
I
SUPPLY
Supply Current
V
IN
= 5.0V, No Load
AP2822 A/B/C/D, V
OUT
= 0V
I
SHORT
Fold-back Short Current
AP2822 E/F/G/H, V
OUT
= 0V
I
SHUTDOWN
V
ENH
V
ENL
I
EN
V
UVLO
V
UVLOHY
I
REVERSE
R
DISCHARGE
I
SHDN_LEAKAGE
t
ON
t
DFLG
V
FLG
I
LEAKAGE
T
OTSD
T
HYOTSD
θ
JC
Shutdown Supply Current
Enable High Input Threshold
Enable Low Input Threshold
Enable Pin Input Current
Under Voltage Lockout Threshold
Voltage
Under Voltage Hysteresis
Reverse Current
Output Pull Low Resistance after
Shutdown
Output Leakage Current after
Shutdown
Output Turn-on Time
FLAG Pin Delay Time
FLAG Pin Low Voltage
FLAG Pin Leakage Current
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
Thermal Resistance
(Junction to Case)
Chip Disable, Shutdown Mode
—
—
Force 0V to 5.0V at EN Pin
V
IN
Increasing from 0V
—
Chip Disable, V
OUT
> V
IN
With Auto-discharge
Without Auto-discharge
From Enable Active to 90% of
Output
From Over Current Fault
Condition to Flag Active
I
SINK
= 5.0mA
FLAG Disable, Force 5.0V
—
—
—
—
—
1.6
0
-1.0
2.2
—
—
—
—
—
5
—
—
—
—
—
1.1
0.1
—
—
—
2.5
0.2
0.1
100
—
500
10
35
—
+150
+30
93
—
1.0
5.5
1.0
1.0
3.0
—
1.0
200
1.0
—
15
70
1.0
—
°
C
—
—
°
C/W
µA
V
V
µA
V
V
µA
Ω
µA
µs
ms
mV
µA
1.65
2.2
—
—
2.2
2.7
68
0.7
2.8
3.2
95
—
A
µA
Conditions
Min
2.7
—
0.7
1.1
Typ
—
85
1.0
1.5
Max
5.5
110
1.4
2.1
A
Unit
V
mΩ
AP2822
Document number: DS41399 Rev. 1 - 3
5 of 16
www.diodes.com
November 2018
© Diodes Incorporated
